We had our second doctor's appointment today for baby #2. We got to see him/her again and hear his/her heartbeat. He/She is doing well and appears to be healthy and growing on schedule. Only eight more weeks until we'll know what we are having and I can stop using "him/her". Here are some pictures from the sonogram today.
Baby #2 with heartbeat monitor reading below.

Baby #2 is making himself/herself at home in Emily's belly -- notice the reclining position.
3D image of Baby #2
Another 3D image. Notice the arms, legs, and even umbilical cord.